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Toplam kayıt 910, listelenen: 21-30
Preparation of HDTMA-bentonite: Characterization studies and its adsorption behavior toward dibenzofuran
(Wiley, 2010)
Bentonite is one of the most commonly used raw materials in the water treatment processes because of its low cost, easily availability and high mechanical and chemical stability. In this study, natural bentonite was modified ...
Syntheses, spectroscopic and crystallographic characterizations of 4-nitrobenzyloxy derivatives and benzofurans from ortho-substituted benzaldehydes and 4-nitrobenzyl bromide
(Springer/Plenum Publishers, 2010)
A series of benzyloxybenzaldehyde derivatives (1-3) were prepared by the reactions of 4-nitrobenzyl bromide with 4-hydroxy-3-methoxybenzaldehyde (vanillin), 2-hydroxy-3-methoxybenzaldehyde (o-vanillin) and 2-hydroxy-4-me ...
catena-Poly[[bis(4-methylbenzoato-kappa 2 O:O')lead(II)]-mu-nicotinamide-kappa 2 N 1:O]
(Wiley-Blackwell Publishing, Inc, 2010)
In the title compound, [Pb(C(8)H(7)O(2))(2)(C(6)H(6)N(2)O)] (n) , the PbII ion is coordinated by two 4-methylbenzoate (PMB) and one nicotinamide (NA) ligands while symmetry-related NA ligands bridge adjacent PbII ions, ...
Tetrakis(mu-4-methylbenzoato-kappa O-2:O ')bis[(isonicotinamide-kappa N)copper(II)]
(Int Union Crystallography, 2010)
In the title centrosymmetric binuclear complex, [Cu-2(C8H7O2)(4)(C6H6N2O)(2)], the Cu atoms [Cu center dot center dot center dot Cu = 2.6375 (6) angstrom] are bridged by four 4-methylbenzoate (PMB) ligands. The four nearest ...
Diaquabis(4-methoxybenzoato-kappa O)bis(nicotinamide-kappa N 1)nickel(II) dihydrate
(Wiley-Blackwell Publishing, Inc, 2010)
In the mononuclear title compound, [Ni(C(8)H(7)O(3))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)]center dot 2H(2)O, the NiII ion is located on a crystallographic inversion center. The asymmetric unit further contains one 4-methoxybenzoate ...
Diaquabis(4-methylbenzoato-kappa O)bis(nicotinamide-kappa N-1)manganese(II)
(Wiley-Blackwell, 2010)
In the mononuclear title complex, [Mn(C8H7O2)(2)(C6H6N2O)(2)-(H2O)(2)], the Mn-II ion is located on a crystallographic inversion center. The asymmetric unit contains one 4-methylbenzoate anion, one nicotinamide (NA) ligand ...
Spectroscopic Determination of Acid Dissociation Constants of Some Novel Drug Precursor 6-Acylbenzothiazolon Derivatives
(American Chemical Society, 2010)
The acid dissociation constants, as pK(a) values, of eight drug precursor 6-acylbenzothiazolon derivatives were determined using UV-vis spectroscopic technique. The protonation and deprotonation behaviors of the investigated ...
The new dispirobino and dispiroansa spermine derivatives of cyclotriphosphazenes
(Pergamon-Elsevier Science LTD, 2010)
In this study, the crystal structures of the dispiroansa spermine derivatives of cyclotriphosphazene are characterised for the first time. The reaction of spiro-, gem-disubstituted cyclotriphosphazene derivatives, ...
Synthesis of New Phosphorus Ylides: Spectroscopic and X-ray Structural Studies
(John Wiley & Sons Inc, 2010)
Stable phosphoranes, Ar(3)P = CHCOR (R = C(6)H(5), C(6)H(4)NO(2), C(6)H(4)OCH(3), CH 3, OCH(2)C(6)H(5); Ar = p-tolyl or phenyl), have been C-acylated by acetic anhydride to obtain new types of phosphorus ylides. Synthesis ...
Hyperbolic Quaternion Formulation of Electromagnetism
(Springer Basel Ag, 2010)
In this paper, after presenting the hyperbolic quaternion formalism, an alternative representational method is proposed for the formulation of classical and generalized electromagnetism in the case of the existence of ...